731425243 has 2 divisors, whose sum is σ = 731425244. Its totient is φ = 731425242.

The previous prime is 731425223. The next prime is 731425283. The reversal of 731425243 is 342524137.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (342524137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 731425243 - 2¹⁷ = 731294171 is a prime.

It is not a weakly prime, because it can be changed into another prime (731425223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365712621 + 365712622.

It is an arithmetic number, because the mean of its divisors is an integer number (365712622).

Almost surely, 2^731425243 is an apocalyptic number.

731425243 is a deficient number, since it is larger than the sum of its proper divisors (1).

731425243 is an equidigital number, since it uses as much as digits as its factorization.

731425243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 731425243 is about 27044.8746160895. The cubic root of 731425243 is about 900.9969376627.

The spelling of 731425243 in words is "seven hundred thirty-one million, four hundred twenty-five thousand, two hundred forty-three".